Patents by Inventor Hiren Kumar V. Patel

Hiren Kumar V. Patel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Processes for preparing a polypeptide
    Patent number: 8729229
    Abstract: The present invention relates to processes for preparing a polypeptide or pharmaceutically acceptable salt thereof comprising L-tyrosine, L-alanine, L-glutamate, and L-lysine. The polypeptide or pharmaceutically acceptable salt thereof is preferably glatiramer acetate.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: May 20, 2014
    Assignee: Sandoz AG
    Inventors: Anup Kumar Ray, Hiren Kumar V. Patel, Johannes Ludescher, Mariappan Anbazhagan, Mahendra R. Patel, Ingolf Macher
  • Polymorph E of Olanzapine and preparation of anhydrous non-solvated crystalline polymorphic Form I of 2-methyl-4(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5] benzodiazepine (Olanzapine Form I) from the polymorphic Olanzapine Form E
    Patent number: 7834176
    Abstract: The invention provides an Olanzapine pseudopolymoph Form E. The invention provides methods of preparing polymorphic Olanzapine Form E employing rapid crystallization and seeding. The invention provides methods of preparing anhydrous Olanzapine Form I from the Olanzapine Form E by step-wise drying.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: November 16, 2010
    Assignee: Sandoz AG
    Inventors: Anup Kumar Ray, Hiren Kumar V. Patel, Johannes Ludescher, Mahendra R. Patel
  • Processes for Preparing a Polypeptide
    Publication number: 20100234566
    Abstract: The present invention relates to an improved process for preparing a polypeptide or pharmaceutically acceptable salt thereof comprising L-tyrosine, L-alanine, L-glutamate, and L-lysine. The polypeptide or pharmaceutically acceptable salt thereof is preferably glatiramer acetate.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 16, 2010
    Inventors: Anup Kumar Ray, Hiren Kumar V. Patel, Johannes Ludescher, Mariappan Anbazhagan, Mahendra R. Patel, Ingolf Macher
  • Processes for Preparing a Polypeptide
    Publication number: 20100234272
    Abstract: The present invention relates to an improved process for preparing a polypeptide or pharmaceutically acceptable salt thereof comprising L-tyrosine, L-alanine, L-glutamate, and L-lysine. The polypeptide or pharmaceutically acceptable salt thereof is preferably glatiramer acetate.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 16, 2010
    Inventors: Anup Kumar Ray, Hiren Kumar V. Patel, Johannes Ludescher, Mariappan Anbazhagan, Mahendra R. Patel, Ingolf Macher
  • Processes for Preparing a Polypeptide
    Publication number: 20100174048
    Abstract: The present invention relates to an improved process for preparing a polypeptide or pharmaceutically acceptable salt thereof comprising L-tyrosine, L-alanine, L-glutamate, and L-lysine. The polypeptide or pharmaceutically acceptable salt thereof is preferably glatiramer acetate.
    Type: Application
    Filed: March 19, 2010
    Publication date: July 8, 2010
    Inventors: Anup Kumar Ray, Hiren Kumar V. Patel, Johannes Ludescher, Mariappan Anbazhagan, Mahendra R. Patel, Ingolf Macher
  • Process for preparing 5-methylisoxazole-4-carboxylic- (4'-trifluoromethyl)-anilide
    Publication number: 20030139606
    Abstract: A process for preparing 5-methylisoxazole-4-carboxylic-(4′-trifluoromethyl)-anilide comprising: (a) reacting ethylacetoacetate, triethylorthoformate, and acetic anhydride at a temperature of from about 75° C. to about 150° C., to form ethyl ethoxymethyleneacetoacetic ester; (b) combining the ethyl ethoxymethyleneacetoacetic ester with sodium acetate or a salt of trifluoroacetic acid in the presence of hydroxylamine sulfate at a temperature of from about −20° C. to 10° C., to form ethyl-5-methylisoxazole-4-carboxylate; (c) reacting the ethyl-5-methylisoxazole-4-carboxylate with a strong acid to form 5-methylisoxazole-4-carboxylic acid; (d) reacting the crystallized 5-methylisoxazole-4-carboxylic acid with thionyl chloride to form 5-methylisoxazole-4-carbonyl chloride; and (e) reacting the 5-methylisoxazole-4-carbonyl chloride with trifluoromethyl aniline and an amine base at a temperature of from about 0° C. to about 50° C.
    Type: Application
    Filed: November 5, 2002
    Publication date: July 24, 2003
    Inventors: Anup Kumar Ray, Hiren Kumar V. Patel, Mahendra R. Patel